WO2009001401A1 - Transmitter-receiver - Google Patents

Transmitter-receiver Download PDF

Info

Publication number
WO2009001401A1
WO2009001401A1 PCT/JP2007/000684 JP2007000684W WO2009001401A1 WO 2009001401 A1 WO2009001401 A1 WO 2009001401A1 JP 2007000684 W JP2007000684 W JP 2007000684W WO 2009001401 A1 WO2009001401 A1 WO 2009001401A1
Authority
WO
WIPO (PCT)
Prior art keywords
bit rate
path characteristics
transmission path
sub channel
modulation scheme
Prior art date
Application number
PCT/JP2007/000684
Other languages
French (fr)
Japanese (ja)
Inventor
Etsuji Nakagiri
Original Assignee
Fujitsu Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/000684 priority Critical patent/WO2009001401A1/en
Priority to JP2009520153A priority patent/JP4947143B2/en
Publication of WO2009001401A1 publication Critical patent/WO2009001401A1/en
Priority to US12/621,172 priority patent/US20100061430A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels

Abstract

A modulation scheme with a large bit rate is applied to a sub channel with good transmission path characteristics, and a modulation scheme with a low bit rate is applied to a sub channel with poor transmission path characteristics for transmission. In this case, information on the transmission path characteristics is detected from signals received in transmission path characteristics detection units (19,29), and a combination of transmission power of each sub channel with which the bit rate over a full band is the maximum is determined in maximum bit rate calculation units (20,30) by means of a minimization algorithm of a matroid convex function. The determined combination of the transmission power for each sub channel and the modulation scheme (bit rate) is used to transmit signals.
PCT/JP2007/000684 2007-06-25 2007-06-25 Transmitter-receiver WO2009001401A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2007/000684 WO2009001401A1 (en) 2007-06-25 2007-06-25 Transmitter-receiver
JP2009520153A JP4947143B2 (en) 2007-06-25 2007-06-25 Transceiver
US12/621,172 US20100061430A1 (en) 2007-06-25 2009-11-18 Transmission/Reception Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000684 WO2009001401A1 (en) 2007-06-25 2007-06-25 Transmitter-receiver

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/621,172 Continuation US20100061430A1 (en) 2007-06-25 2009-11-18 Transmission/Reception Device

Publications (1)

Publication Number Publication Date
WO2009001401A1 true WO2009001401A1 (en) 2008-12-31

Family

ID=40185235

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000684 WO2009001401A1 (en) 2007-06-25 2007-06-25 Transmitter-receiver

Country Status (3)

Country Link
US (1) US20100061430A1 (en)
JP (1) JP4947143B2 (en)
WO (1) WO2009001401A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012213018A (en) * 2011-03-31 2012-11-01 Sony Corp Signal transmission device, communication device, electronic equipment, and signal transmission method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113890811B (en) * 2021-09-18 2024-01-19 中国电子科技集团公司第五十四研究所 Subcarrier allocation method based on proportional greedy algorithm and ACE-PTS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000358008A (en) * 1999-06-17 2000-12-26 Mitsubishi Electric Corp Apparatus and method for communication
JP2001292127A (en) * 2000-03-14 2001-10-19 Centillium Communications Inc Reinforced bit loading for multi-carrier communication channel
JP2001320306A (en) * 2000-03-24 2001-11-16 Polytrax Inf Technol Ag Method and device for communicating power line data

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004266585A (en) * 2003-03-03 2004-09-24 Hitachi Ltd Wireless communication system, its transmission electric power and data rate control method
JP2007259358A (en) * 2006-03-24 2007-10-04 Toshiba Corp Radio communication system and radio communication terminal thereof
JP2008042547A (en) * 2006-08-07 2008-02-21 Fujitsu Ltd Mobile communication system, base station, terminal device, and transmission control method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000358008A (en) * 1999-06-17 2000-12-26 Mitsubishi Electric Corp Apparatus and method for communication
JP2001292127A (en) * 2000-03-14 2001-10-19 Centillium Communications Inc Reinforced bit loading for multi-carrier communication channel
JP2001320306A (en) * 2000-03-24 2001-11-16 Polytrax Inf Technol Ag Method and device for communicating power line data

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012213018A (en) * 2011-03-31 2012-11-01 Sony Corp Signal transmission device, communication device, electronic equipment, and signal transmission method

Also Published As

Publication number Publication date
JP4947143B2 (en) 2012-06-06
JPWO2009001401A1 (en) 2010-08-26
US20100061430A1 (en) 2010-03-11

Similar Documents

Publication Publication Date Title
WO2007047238A3 (en) Multiple modulation rate 10gbase-t transmission
WO2006110391A3 (en) System and methods of communicating over noisy communication channels
WO2013052491A3 (en) Antenna time offset in multiple-input-multiple-output and coordinated multipoint transmissions
WO2006062652A3 (en) Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments
WO2009132178A3 (en) Backward compatible bandwidth extension
WO2010147515A8 (en) A method for antenna calibration in a wideband communication system
WO2007130808A3 (en) A pre-coder selection based on resource block grouping
WO2009029623A3 (en) System and method for automated link quality measurement for adaptive modulation systems using noise level estimates
WO2010101805A3 (en) Transmission of channel quality data in wireless communication systems
WO2008031037A3 (en) Antenna grouping for mimo systems
WO2011073859A3 (en) Defining adaptive detection thresholds
WO2008126644A1 (en) Transmitting method, transmitting device, receiving method, and receiving device
SG171479A1 (en) Signal transmission channel
WO2009085869A3 (en) Receiver adjustment between pilot bursts
WO2009009538A3 (en) Techniques for receiver beamforming and yielding-threshold adjustments in peer-to-peer networks
WO2012078527A3 (en) Cognitive use of multiple regulatory domains
WO2009072789A3 (en) Physical broadcast channel (pbch) transmission for reliable detection of antenna configuration
WO2008005583A3 (en) System and method for anticipatory receiver switching based on signal quality estimation
WO2009023681A3 (en) Mimo transmission with spatial pre-coding
WO2007049845A3 (en) Communication apparatus
WO2008032959A3 (en) A method for transmitting and receiving signals based on the segmented access scheme, and a method for allocating sequence for the same
WO2009051447A3 (en) System and method for transmitting/receiving signal in a communication system
WO2007025137A3 (en) Method and apparatus for reliable transmit power and timing control in wireless communication
WO2006109123A3 (en) Joint feed-forward and feedback design for wireless communication systems
WO2004013981A3 (en) Power control of point to multipoint physical channels

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07790208

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2009520153

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07790208

Country of ref document: EP

Kind code of ref document: A1